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Gentoo Linux Security Advisory                           GLSA 200503-10
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Mozilla Firefox: Various vulnerabilities
      Date: March 04, 2005
      Bugs: #83267
        ID: 200503-10

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Synopsis
========

Mozilla Firefox is vulnerable to a local file deletion issue and to
various issues allowing to trick the user into trusting fake web sites
or interacting with privileged content.

Background
==========

Mozilla Firefox is the popular next-generation browser from the Mozilla
project.

Affected packages
=================

    -------------------------------------------------------------------
     Package                      /  Vulnerable  /          Unaffected
    -------------------------------------------------------------------
  1  net-www/mozilla-firefox           < 1.0.1                >= 1.0.1
  2  net-www/mozilla-firefox-bin       < 1.0.1                >= 1.0.1
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

Description
===========

The following vulnerabilities were found and fixed in Mozilla Firefox:

* Michael Krax reported that plugins can be used to load privileged
  content and trick the user to interact with it (CAN-2005-0232,
  CAN-2005-0527)

* Michael Krax also reported potential spoofing or
  cross-site-scripting issues through overlapping windows, image
  drag-and-drop, and by dropping javascript: links on tabs
  (CAN-2005-0230, CAN-2005-0231, CAN-2005-0591)

* Daniel de Wildt and Gael Delalleau discovered a memory overwrite in
  a string library (CAN-2005-0255)

* Wind Li discovered a possible heap overflow in UTF8 to Unicode
  conversion (CAN-2005-0592)

* Eric Johanson reported that Internationalized Domain Name (IDN)
  features allow homograph attacks (CAN-2005-0233)

* Mook, Doug Turner, Kohei Yoshino and M. Deaudelin reported various
  ways of spoofing the SSL "secure site" indicator (CAN-2005-0593)

* Matt Brubeck reported a possible Autocomplete data leak
  (CAN-2005-0589)

* Georgi Guninski discovered that XSLT can include stylesheets from
  arbitrary hosts (CAN-2005-0588)

* Secunia discovered a way of injecting content into a popup opened
  by another website (CAN-2004-1156)

* Phil Ringnalda reported a possible way to spoof Install source with
  user:pass@host (CAN-2005-0590)

* Jakob Balle from Secunia discovered a possible way of spoofing the
  Download dialog source (CAN-2005-0585)

* Christian Schmidt reported a potential spoofing issue in HTTP auth
  prompt tab (CAN-2005-0584)

* Andreas Sanblad from Secunia discovered a possible way of spoofing
  the Download dialog using the Content-Disposition header
  (CAN-2005-0586)

* Finally, Tavis Ormandy of the Gentoo Linux Security Audit Team
  discovered that Firefox insecurely creates temporary filenames in
  /tmp/plugtmp (CAN-2005-0578)

Impact
======

* By setting up malicious websites and convincing users to follow
  untrusted links or obey very specific drag-and-drop or download
  instructions, attackers may leverage the various spoofing issues to
  fake other websites to get access to confidential information, push
  users to download malicious files or make them interact with their
  browser preferences.

* The temporary directory issue allows local attackers to overwrite
  arbitrary files with the rights of another local user.

* The overflow issues, while not thought to be exploitable, may allow
  a malicious downloaded page to execute arbitrary code with the rights
  of the user viewing the page.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Firefox users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-www/mozilla-firefox-1.0.1"

All Firefox binary users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-www/mozilla-firefox-bin-1.0.1"

References
==========

  [ 1 ] CAN-2004-1156
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1156
  [ 2 ] CAN-2005-0230
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0230
  [ 3 ] CAN-2005-0231
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0231
  [ 4 ] CAN-2005-0232
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0232
  [ 5 ] CAN-2005-0233
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0233
  [ 6 ] CAN-2005-0255
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0255
  [ 7 ] CAN-2005-0527
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0527
  [ 8 ] CAN-2005-0578
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0578
  [ 9 ] CAN-2005-0584
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0584
  [ 10 ] CAN-2005-0585
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0585
  [ 11 ] CAN-2005-0586
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0586
  [ 12 ] CAN-2005-0588
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0588
  [ 13 ] CAN-2005-0589
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0589
  [ 14 ] CAN-2005-0590
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0590
  [ 15 ] CAN-2005-0591
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0591
  [ 16 ] CAN-2005-0592
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0592
  [ 17 ] CAN-2005-0593
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0593
  [ 18 ] Mozilla Security Advisories
         http://www.mozilla.org/projects/security/known-vulnerabilities.html

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200503-10.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2005 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.0